Improvement in water-elevators



PATENT OFFICE.

JOSIAH HAYDEE OF HAYDENVILLE, MASSACHUSETTS.

IMPROVEMNT IN WATEFl-ELEVATORSIl Specification forming part of LettersPatent No. 36,300, dated August 26, 1862.

To all whom t may concern:

Be it known that I, J osIAH HAYDEN, of Haydenville, in the county ofHampshire and State of Massachusetts, have invented new and usefulImprovements in Vater-Drawers; and I do hereby declare that thefollowing is a full and complete description of the construction andoperation of the saine, reference being had to the accompanyingdrawings, making part of this speccation, in which- Figure 1 is aperspective view. Fig 2 is a vertical section; and Figs. 3, 4, and 5 aredetached parts.

The nature of my invention relates, irst, to the form and structure ofthe chain; second, to the windlass-wheel, and, third, to the form andoperation of the pall and ratchet.

C represents'the curb. This is made in the usual form. The shaft S issecured to the top of the curb by boxes B. The windlass-wheel W issecured to the shaft S at the middle. The circumference of the wheel isdivided into angular teeth T, the outer ends of which are in the form ofa flattened wedge or wedgeshaped cone, the base of the teeth unitingtogether on a line about an inch within the circumference of the point,the length of the base being equal to about twice the height of theteeth.

R represents a ratchet-wheel placed on the crank end of the shaft S, theteeth of which point toward the front side or dischargespout A.

P is a pawl which is pivoted to the curb at P', from which point extendsa short lever, P, the end of which extends over the edge of the curb andadmits of a depression only so far as to raise the pawl P from the teethof the ratchettwheel R. 'The pawl P being longer than the lever P, itssuperior gravity will always keep it in contact with the ratchet-wheelteeth, and, consequently, when the bucket is ascending it is alwayssecure from running back should the hand of the operator slip from thecrank-handle. Serious injuries and son1etimes loss of life have arisenfrom accidents of this kind by the crank striking the operator. Inletting the bucket into the well the lever P is pressed down upon thetop of the curb, and the ratchet is thus relieved from contact with thepawl.

G represents the chain. This is constructed in a peculiar formandespecially adapted to of the chain G, so far as is necessary to a cleardescription of its structure. The openings in the links of this chainare made to correspond in size with the base of the teeth T. Each linkis formed of one piece of wire, bent into a peculiar form and embracingwith their free ends the middle portion of the wire that forms the nextlink. The sides a of the link are straight. The ends are formed into ahook, as seen at b. At o the rod is bent outward and then inward andslightly forward between the bars a, forming the curve c d o. The freeand hooked ends b of another link are firmly clasped around thedepression c, and the forward curve, d, prevents the free ends I) fromapproaching each other when the chain is put upon la tension, and bymeans of the outward curve, c, the sides of the links, (seen at (0,) arebrought nearly into line with each other, and, consequently, the chainwill sustain a greater weight Without becoming elongated by strain thanit would if the body of the links were curved.

A chain constructed in the manner above described possesses certainproperties not found in any other chain. The curves c d c form a seriesof arches that give a certain degree of elasticity to the chain,preventing the links from breaking on being subjected to any suddenstrain, while at the same time the absolute strength of the chain is notin the least impaired. The curve d acts especially in this manner, forif the hooks b I) passed around a straight bar extending from c to c thetendency would be, in applying tension to the chain, to curve the linkin a direction opposite to that shown at d in Fig. 4; but in this casethe tendencyis rather to increase than diminish the curvature of thearch d, and hence the integrity of the structure.

The length of the links is such that the base of the teeth on thewindlasswheel will fill them, and, consequently, there can be no slip ofthe chain in drawing water.

The bucket is formed with a valve, V, in the bottom, through which thewater enters in filling. The bail B of the bucket is hinged` just abovethe middle, as seen in section in Fig. 2, and to the front side of thebucket is attached a rod, D, which passes within the horizontal rod E,which is hinged to the curb and swings up over the inner end of thespout A. By this means the bucket is changed from its natural positionwhile ascending to the horizontal position indicated by the red lines inFig. 2, and thus the water is discharged i into the spout. i

The bucket is balanced by a weight, F, l

which hangs upon the opposite end of the chain G to balance the Weightof the bucket.

J OSIAH HAYDEN.

'Witnessesz J B. GLEAsoN, JOEL lIAYizutN.`

